Get Quotes Contact Us Sign In
Website
Call
Dupont's Service Center It all started in Gonic, New Hampshire. Founder Edward Dupont Senior decided working in the mill was not the way he wanted to make a living. Mr. Dupont was always a car fanatic and decided to pursue his passion by entering the automobile repair business. In the early 1950's, Edward Dupont Sr. had the opportunity to rent a one bay gas and service station located across from the Mill.

Ed obtained a lease and went into business. Ed stayed in business with the help of his wife Madeline (The Bookkeeper). The little shop on Main street flourished.
Services
You may be here because you're wondering why our customers choose Dupont's for their auto care. What if i told you all work performed at Dupont's as well as parts installed are warrantied for the next two years.
Dupont's Service Center was founded in 1961. We have grown to become one of the largest independent auto repair facilities in New Hampshire. The business is currently owned and operated by David P. Dupont, founder Edward Dupont's youngest son. Dupont's was the NH 2010 AAA Shop of the Year. Dave is assisted by Manager, James Ellis and a professional staff of Service Advisors and Technicians.
Bring your car to Dupont's Service Center in Dover, NH - near Durham, NH and UNH - for auto repairs, tune-ups, brake service, tire sales and installation, and oil changes. Proudly serving Dover, NH; Durham, NH; University of NH; Somersworth, NH; Barrington, NH and surrounding areas.
Locating our service center is very easy. You can always give us a call at 603-742-8627 anytime for assistance in directions, or you can use any of the information below to help you. Take Exit 8W off from the Spaulding Turnpike (Route 16), and drive about 1.0 mile on Route 155. Take a right onto Sumner Drive.
Reviews (18)
Write a Review
Elizabeth Sprague
Jun 13, 2022
I've taken my car to DuPont's for my last 2 state inspections. I appreciate their amazing custom service, integrity, and honesty. I am also a fan of how clean their waiting area is.
Damon Montagano
Jun 01, 2022
Well organized, professionally run, "do it all" auto maintenance facility. The staff in the front is very helpful, and the maintenance teams are experts. They have the best tools and equipment, and tons of experience. I have utilized Dupont's several times now for maintenance, repairs, and inspections. Fees and expenses are slightly higher than competitors, but the top notch work done is well worth it!
Richard Blakemore
May 24, 2022
This business has first rate people interacting with the public. The technical work is excellent as well. I can describe symptoms or work I would like done and leave the rest to them knowing I will get a professional experience. I have always dropped the vehicle off and have not yet needed their courtesy transportation service but it is great knowing its available. I like the fact that I can accumulate reward points that translate directly into money off the bill.
Abby Draper
May 08, 2022
I called at least 10 garages trying to find an appointment when my clutch started making a terrifying noise. Dupont was the only place that genuinely sounded apologetic AND was able to squeeze me in a week before anyone else could. They provided excellent service, great communication and explained all the issues in detail - making sure to explain when a repair was necessary versus preventative maintenance.

I highly recommend them for any auto repair you may have. They're obvious passion for their work, teamwork mentality, and friendliness was SO refreshing! Thank you, Dupont's!
Olivia Harvey
Mar 10, 2022
This place is the best! I started going here 7 or 8 years ago when I moved to the area because someone recommended them and I couldn't imagine going anywhere else! They have excellent customer service and are very knowledgeable and trustworthy. They will tell you when you don't need work done, so when they say something does need to get done, you can trust them.

They always go out of their way to make sure you're happy. I've been very impressed with how they work hard to fit you in and get the work done fast. They have a shuttle service and will give you a loaner vehicle if needed. Everyone is so nice here. They really take the hassle out of normally very frustrating car repair experiences. I highly recommend!
Katy Guidi
Feb 28, 2022
I do not know anything about cars. I needed to find a garage I could trust and I have at DuPonts. My car was recently fixed with them within hours and I got it back same day. I was not expecting such a quick turn around and was beyond grateful. They were constantly communicating and updating me via text and calls which was extremely helpful especially while I was busy working. They are professional and kind. The check out office is always clean. I have recommended them to friends at work and will not be going anywhere but here!
Kaylee Hill
Feb 23, 2022
This was my first time using Dupont's Service and I was pretty impressed. When I showed up they told me my appointment was the following week and I had received email confirmation of the wrong day by accident. I was prepared to come back the following week but they managed to fit me right in that same day, and had my state inspection finished and my vehicle back to me all within about 45 minutes. I'll definitely be returning for services on both of my vehicles in the future.
Cliff Heighes
Feb 22, 2022
I have always been treated with honesty and fairness. I can't express how rare that can be in such a highly competitive industry. What a great staff. Thank you, techs and customer service for having a great experience year after year. Definitely would recommend.
Christian Hathaway
Jan 24, 2022
By far the most friendly, honest, and most importantly the least "salesy/pushy" auto shop I've ever been to. All of the staff is helpful and a pleasure to speak with. They also offer an extremely frequent shuttle service to take you home or to your job at no additional cost! Talk about going above and beyond! I will give a special shoutout to Chris, which is who I mainly work with.

Super nice guy that goes above and beyond. He is very honest about what repairs are needed ASAP and which repairs can wait. I would rate their servicing, quality, turnaround time, staff, convenience, and customer service an 11 out of 10. I couldn't see myself taking my cars anywhere else! Keep up the amazing job!
Stan Magoon
Jan 05, 2022
I had made an appointment to get a new alternator on my car. I was having a had time making arrangements to get the car there but Mike was so kind and accommodating! Jay communicated with me on the status of the car and answered all my questions. Such a pleasure working with honest, caring people.
Sean Lessard
Oct 27, 2021
I am a Domino's driver currently, and when my radiator began to leak, my boss recommended me to these guys. While it seems they do good work, for my situation specifically, I dealt with some issues getting the job done. First of all, the radiator was ridiculously expensive, despite the OE option being available on RockAuto for $150 less. I wasn't able to find out why this was the case. Secondly, after driving my car off, I found that the top transmission cooler line on the radiator was leaking, but the people couldn't get me back in right away, even though that was part of the job.

My friend and I added thread sealant and fixed the problem, as there was almost none on the fitting when we disconnected it. I'm sure I just had a fluke and had a poor job done, as my boss hasn't had any issues with them, but I don't think I'm personally going to go back here.
Josh Buonpane
Oct 19, 2021
I've had nothing but good experiences here. I typically prefer a shop where you talk directly to the mechanics, but in my experience with Dupont's, I've found the service writers to be very professional, highly knowledgeable, and the service timely. Will continue to come here as long as I live in the area.
Evelyn Sidmore
Oct 18, 2021
As usual, Dupont's service was exceptional. Prompt, quality service. They even came out and picked me up to go back and get my car. Great company. Service: Tyres
Joshua Watson
Oct 17, 2021
After moving to the area, I was worried that I would have trouble finding a reliable repair shop. Thankfully, I was fortunate enough to find Dupont's and could not be happier. As someone who admittedly does not know much about cars, a member of the Dupont's always takes time to explain what work they've done to the car and what to expect should there be an issue in the future.

Each member of their team is kind and courteous and makes you feel like you've known them for years. Most importantly, you can trust them to be transparent and reliable when working on your car. I strongly recommend Dupont's to anyone looking for a trustworthy repair shop.
Happy Auntie
Oct 16, 2021
If you do not mind issues with your car being missed, or having the work incomplete, the owner yelling at you when you contact them for their mistake, bring it on down to Dupont's! I was looking for a new mechanic after 6 years of leasing cars. I read all the reviews, thinking this garage sounds fantastic. I had bought a used vehicle, wanted a full look over, the staff was very pleasant, I received notification on what needed to be repaired, which to my surprise wasn't much.

Apparently a few things were "overlooked" I spoke to the owner, if you want to do that, do not expect to get a word in, he wont let you. He will scream at you. I am appalled that someone who could be in business this long has stayed in business. The other staff was great, at first. Mr. would not hear me out. Accused another shop of causing the issues, which the other shop found and suggested I bring it back to be taken care of.
Morgan Hodgson-Smith
Sep 19, 2021
Duponts have been my go-to place for all quick, reliable fixes. The front desk staff and the garage staff are so friendly and make sure you understand everything you need to know. Vehicle inspections are painless and making an appointment is so convenient. Services: General repairs & maintenance, Oil change
Thom Ray
Sep 11, 2021
The employees who work at Dupont are impressive! Their depth of knowledge of wrenching all types and manner of vehicles that they service floored me! The were informative and ever helpful in getting my Class B RV inspected. I thoroughly enjoyed my interaction with all of the ones that I met.
Steve Frank
Sep 01, 2021
My daughter was visiting briefly from out of town, She needed new tires, an oil change and a mysterious vibration researched. When I called, I got a real human being. who was able to get her an appointment quickly. Once in the shop, the staff took care of everything. Their communications regarding the vehicle while in their hands was fast/efficient. as well as their service. Excellent on all fronts. Thank you very much